Waste gas recycling device of sintering circular cooler

The utility model discloses a waste gas recycling device of a sintering circular cooler, which comprises a large smoke pipe, a plurality of groups of air taking branch pipes are arranged at the top end of the large smoke pipe, the top ends of the air taking branch pipes are communicated with a circulating smoke pipe, and the top end of the circulating smoke pipe is respectively communicated with a hot section circulating fan and a cold section circulating fan through two groups of connecting pipes. The bottom end of the hot-section circulating fan and the bottom end of the cold-section circulating fan are communicated through the hot-section circulating dust remover and the cold-section circulating dust remover, dust in flue gas returns to a material layer (in a circulating flue gas pipe) after being dedusted, effective control is achieved, waste gas discharged by the sintering ring cooler is fully recycled, zero emission of sintering ring cooling waste gas is achieved, and the production cost is reduced. Com